.WHEN RUSSIA penetrated in February 2022 Ukraine rarely had a naval force. The defenders scuttled their one frigate to avoid Russia from appropriating it. 2 years later Ukraine is actually battling to keep back a Russian offensive on land-- yet it is actually succeeding the war in the Black Ocean and has damaged the Russian blockade of its own surface ships. Its own victories have actually frequently depended upon rapid technical development: every other navy relies on crewed ships to fight, yet Ukraine has actually built a line of drone watercrafts, or uncrewed area vehicles (USVs). Exactly how are they shaping the war at sea?